Formation and corrosion behavior of glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys

S. J. Pang; C. H. Shek; K. Asami; A. Inoue; T. Zhang

doi:10.1016/j.jallcom.2006.08.289

Formation and corrosion behavior of glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys

S. J. Pang, C. H. Shek, K. Asami, A. Inoue, T. Zhang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

Abstract

Bulk glassy Ni₅₅Nb₂₀Ti₁₀Zr₈Co₇ alloy with a critical diameter of 2 mm was synthesized by copper-mold casting and the glass transition temperature, crystallization temperature and supercooled liquid region are 858 K, 911 K and 52 K, respectively. High corrosion resistance in 1N HCl and H₂SO₄ solutions was recognized for the glassy alloys Ni₅₅Nb₂₀Ti₁₀Zr₈Co₇ together with Ni₅₃Nb₂₀Ti₁₀Zr₈Co₆Cu₃ which possesses higher glass-forming ability. They are spontaneously passivated with low passive current densities of the order of 10^-2 A/m² and their corrosion rate was less than 10^-3 mm/year in the solutions. A small amount addition of Cu (3 at.%) in the Ni-Nb-Ti-Zr-Co glassy alloy system has little effect on corrosion behavior and surface film composition. Niobium-rich passive films form on the glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys, which could be responsible for the high corrosion resistance. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	240-243
Journal	Journal of Alloys and Compounds
Volume	434-435
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jallcom.2006.08.289
Publication status	Published - 31 May 2007

Research Keywords

Amorphous materials
Corrosion
Ni-based alloys
Thermal analysis

Access Output

10.1016/j.jallcom.2006.08.289

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{a77551d262294ead8f3196deae4c4812,

title = "Formation and corrosion behavior of glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys",

abstract = "Bulk glassy Ni55Nb20Ti10Zr8Co7 alloy with a critical diameter of 2 mm was synthesized by copper-mold casting and the glass transition temperature, crystallization temperature and supercooled liquid region are 858 K, 911 K and 52 K, respectively. High corrosion resistance in 1N HCl and H2SO4 solutions was recognized for the glassy alloys Ni55Nb20Ti10Zr8Co7 together with Ni53Nb20Ti10Zr8Co6Cu3 which possesses higher glass-forming ability. They are spontaneously passivated with low passive current densities of the order of 10-2 A/m2 and their corrosion rate was less than 10-3 mm/year in the solutions. A small amount addition of Cu (3 at.%) in the Ni-Nb-Ti-Zr-Co glassy alloy system has little effect on corrosion behavior and surface film composition. Niobium-rich passive films form on the glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys, which could be responsible for the high corrosion resistance. {\textcopyright} 2006 Elsevier B.V. All rights reserved.",

keywords = "Amorphous materials, Corrosion, Ni-based alloys, Thermal analysis",

author = "Pang, {S. J.} and Shek, {C. H.} and K. Asami and A. Inoue and T. Zhang",

year = "2007",

month = may,

day = "31",

doi = "10.1016/j.jallcom.2006.08.289",

language = "English",

volume = "434-435",

pages = "240--243",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "SPEC. ISS.",

}

TY - JOUR

T1 - Formation and corrosion behavior of glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys

AU - Pang, S. J.

AU - Shek, C. H.

AU - Asami, K.

AU - Inoue, A.

AU - Zhang, T.

PY - 2007/5/31

Y1 - 2007/5/31

N2 - Bulk glassy Ni55Nb20Ti10Zr8Co7 alloy with a critical diameter of 2 mm was synthesized by copper-mold casting and the glass transition temperature, crystallization temperature and supercooled liquid region are 858 K, 911 K and 52 K, respectively. High corrosion resistance in 1N HCl and H2SO4 solutions was recognized for the glassy alloys Ni55Nb20Ti10Zr8Co7 together with Ni53Nb20Ti10Zr8Co6Cu3 which possesses higher glass-forming ability. They are spontaneously passivated with low passive current densities of the order of 10-2 A/m2 and their corrosion rate was less than 10-3 mm/year in the solutions. A small amount addition of Cu (3 at.%) in the Ni-Nb-Ti-Zr-Co glassy alloy system has little effect on corrosion behavior and surface film composition. Niobium-rich passive films form on the glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys, which could be responsible for the high corrosion resistance. © 2006 Elsevier B.V. All rights reserved.

AB - Bulk glassy Ni55Nb20Ti10Zr8Co7 alloy with a critical diameter of 2 mm was synthesized by copper-mold casting and the glass transition temperature, crystallization temperature and supercooled liquid region are 858 K, 911 K and 52 K, respectively. High corrosion resistance in 1N HCl and H2SO4 solutions was recognized for the glassy alloys Ni55Nb20Ti10Zr8Co7 together with Ni53Nb20Ti10Zr8Co6Cu3 which possesses higher glass-forming ability. They are spontaneously passivated with low passive current densities of the order of 10-2 A/m2 and their corrosion rate was less than 10-3 mm/year in the solutions. A small amount addition of Cu (3 at.%) in the Ni-Nb-Ti-Zr-Co glassy alloy system has little effect on corrosion behavior and surface film composition. Niobium-rich passive films form on the glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys, which could be responsible for the high corrosion resistance. © 2006 Elsevier B.V. All rights reserved.

KW - Amorphous materials

KW - Corrosion

KW - Ni-based alloys

KW - Thermal analysis

UR - http://www.scopus.com/inward/record.url?scp=33947593393&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33947593393&origin=recordpage

U2 - 10.1016/j.jallcom.2006.08.289

DO - 10.1016/j.jallcom.2006.08.289

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 434-435

SP - 240

EP - 243

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SPEC. ISS.

ER -

Formation and corrosion behavior of glassy Ni-Nb-Ti-Zr-Co(-Cu) alloys

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this